SB2024062597 - Buffer overflow in Linux kernel wwan t7xx driver
Published: June 25, 2024 Updated: May 13, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Buffer overflow (CVE-ID: CVE-2024-35909)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the t7xx_pcie_mac_atr_tables_dis() and t7xx_pcie_mac_atr_cfg() functions in drivers/net/wwan/t7xx/t7xx_pcie_mac.c, within the t7xx_cldma_gpd_rx_from_q() and t7xx_cldma_txq_empty_hndl() functions in drivers/net/wwan/t7xx/t7xx_hif_cldma.c, within the t7xx_cldma_tx_addr_is_set() and t7xx_cldma_hw_set_start_addr() functions in drivers/net/wwan/t7xx/t7xx_cldma.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/beaf0e7996b79e06ccc2bdcb4442fbaeccc31200
- https://git.kernel.org/stable/c/2e22c9cb618716b8e557fe17c3d4958171288082
- https://git.kernel.org/stable/c/b4fdb3c197e35f655b2d9b6759ce29440eacdfda
- https://git.kernel.org/stable/c/7d5a7dd5a35876f0ecc286f3602a88887a788217
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.85
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.26
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.5